Modified AES for Text and Image Encryption
TL;DR: The modified AES used Bit Permutation to replace the MixColumns Transformation in AES since bit permutation is easy to implement and it does not have any complex mathematical computation.
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Abstract: Advanced Encryption Standard (AES) is one of the most frequently used encryption algorithms. In the study, the Advanced Encryption Standard is modified to address its high computational requirement due to the complex mathematical operations in MixColumns Transformation making the encryption process slow. The modified AES used Bit Permutation to replace the MixColumns Transformation in AES since bit permutation is easy to implement and it does not have any complex mathematical computation. Results of the study show that the modified AES algorithm exhibited increased efficiency due to the faster encryption time and reduced CPU usage. The modified AES algorithm also yielded higher avalanche effect which improved the performance of the algorithm.
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Citations
A lightweight AES algorithm implementation for encrypting voice messages using field programmable gate arrays
TL;DR: This paper gives an idea of encrypting voice signals over peer to peer communication with the help of a modified and lightweight AES algorithm that is similar to the traditional AES algorithm in most of the aspects but does not imply the use of mix column that is used in theTraditional AES algorithm.
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Modified AES Cipher Round and Key Schedule
TL;DR: The modified AES was modified to address the low diffusion rate at the early rounds by adding additional primitive operations such as exclusive OR and modulo arithmetic in the cipher round andbyte substitution and round constant addition were appended to the keyschedule algorithm.
Modified honey encryption scheme for encoding natural language message
TL;DR: The HE schemes are modified to support the encoding of natural language messages using Natural Language Processing techniques and the main contribution was creating a structure that allowed a message to be encoded entirely in binary.
A comprehensive review of honey encryption scheme
TL;DR: A comprehensive survey of the Honey Encryption scheme is presented, identifying two major open areas which are the difficulty of creating semantically and contextually plausible-looking and convincing decoy message that is good enough to fool the attacker into believing he has the original message.
Implementation of a bit permutation-based advanced encryption standard for securing text and image files
TL;DR: Results show that modifying AES by using bit permutation to replace MixColumns Transformation was able to address the high computational requirement of the algorithm resulting in a faster and more secure encryption algorithm for text files and images.
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New Comparative Study Between DES, 3DES and AES within Nine Factors
TL;DR: A three algorithm of multimedia encryption schemes have been proposed in the literature and description and aimed at achieving an efficiency, flexibility and security, which is a challenge of researchers.
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Analysis and improvement of a chaos-based symmetric image encryption scheme using a bit-level permutation
Ying-Qian Zhang,Xingyuan Wang +1 more
TL;DR: This paper develops a chosen-plaintext attack and chosen-ciphertext attack on Zhu's algorithm that indicates that the Arnold cat map applied directly in image encryptions is not suitable for cryptography.
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A Survey on Various Most Common Encryption Techniques
E. Thambiraja,G. Ramesh,R. Umarani,Sri Sarada +3 more
- 01 Jan 2012
TL;DR: This talk will present a perspective on the current state of play in the field of encryption algorithms, in particular on private key block ciphers which are widely used for bulk data and link encryption.
91
Efficiency and Security of Some Image Encryption Algorithms
Marwa Abd El-Wahed,Saleh Mesbah,Amin A. Shoukry +2 more
- 01 Jan 2008
TL;DR: It is proposed that it may be possible to develop new algorithms providing adequate means of efficiency with acceptable security and no single encryption mechanism is able to get the maximum security with minimum execution time.